HOLLEY SNIPER FUEL INJECTION ~or~ CARBURETOR???

I have a FI tech go EFI 400hp or less street.
I ALMOST switched back but decided to hang in there and now down to limited issues. Not sure on Holley but the FI tech has a few pitfalls nobody tells you about.
A) it’s not plug and play. A lot of playing with numbers to get it right… or close to right (running to a level that is decent.
B) tech support sucks. Holley without even trying beats them. Every time I call- it’s at least 1hr hang time and then they are borderline rude.
C) right out of the box the sensors were junk. I ended up buying new name brand sensors and it improved immediately.
D) hand held that comes with it is about the size of an old beeper and the screen is a bit better than an old calculator. some commands you have to scroll too and some you can touch screen to. It’s like the left hand did not know what the right hand was doing when designing the hand held.
E) Fuel pressure is difficult to control but accurate pressure is needed for the damn thing to run right.
F) did I mention tech support sucks.

Anyhoo- I stuck with it and it is not as good as my wife’s newer Chrysler 300s or any of my new Hemi’s but it is turn key and reasonable to drive. Plenty of power and my only issue now is ac control (idle bump up when ac is commands on) and weird idle - sometimes it’s 1100 some times 850 where it should be. Sometimes it drops on its own and others just hangs out…. Forever at the higher idle. Also I’d add the control cord for the hand held is too short for driving without buying an add on extension cord.